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标题：Intraocular Lens Power Calculation Using Shammas-PL Formula after Laser In-situ Keratomileusis
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作者：Se Young Park ; Joo Young Kwag ; Jin Seok Choi 等
期刊名称：Journal of the Korean Ophthalmological Society
印刷版ISSN：0378-6471
出版年度：2021
卷号：62
期号：2
页码：201-206
DOI：10.3341/jkos.2021.62.2.201
出版社：The Korean Ophthalmological Society
摘要：Purpose To calculate the intraocular lens (IOL) power using the Shammas-PL formula after laser in-situ keratomileusis (LASIK). Methods Forty-one eyes of 29 patients that had undergone cataract surgery from September 2018 to September 2019 after LASIK were enrolled in this study. A preoperative AL-Scan p > ® p > (Nidek Co., Gamagori, Japan) was used to measure the axial length, anterior chamber depth, and corneal curvature. An IOL power calculation was performed using the Shammas-PL (post LASIK) formula. Mean absolute error (MAE) and mean arithmetic error (MARE) were calculated using preoperative manifest refraction and postoperative manifest refraction. Results Of the 41 eyes, 15 eyes (36.6%) were relatively hyperopic-shifted after surgery compared to the predicted refractive error before surgery, 25 eyes (61%) showed a relative myopic shift, and one eye (2.4%) showed no change with respect to the previous refractive predicted error. Refractive errors before cataract surgery were not related to myopic, emmetropic, or hyperopic shifting after surgery ( p > 0.05). Conclusions When cataract surgery using the Shammas-PL formula was performed after LASIK, myopic shifting was more common than hyperopic shifting. The MAE was greater in myopic-shifted cases than that of hyperopic-shifted cases. Thus, it is better to determine IOL power toward the hyperopic side than the target refractive prediction.
其他关键词：Cataract, Intraocular lens power calculation, Laser in-situ keratomileusis, Shammas-PL